Desktop injection molding machine is useful to find optimal processing conditions for mass production. Coolant chiller and temperature controller are used together for accurate experiments.Started with operation analysis in the laboratory, "Trinity" workbench provides a convenient work environment to the researchers. Pipe frames and high-strength low-alloy (HSLA) steel decks make a redundant structure, supporting 550-lb-weight of the three machines. Wide upper deck reserves a space for materials in use, and dual level lower deck facilitates experiments by lowering the overall height.